在神经病痛疼痛中使用脊柱特异性超级增强剂
Yang Tao1, Qi-Hui Wang1, Xiao-Tong Li1
1Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic Drugs, Xuzhou Medical University, Xuzhou 221004, China.
概括
超级增强剂 (SE) 通过调节脊髓神经元中的 Ntmt1 和 Prrx2 基因表达来驱动神经病痛. 抑制含有odomain的蛋白4 (BRD4) 或删除SE可缓解疼痛,突出显示BRD4抑制剂是潜在的治疗方法.
科学领域:
- 神经科学是一个神经科学.
- 分子生物学分子生物学
- 疼痛研究 疼痛研究
背景情况:
- 在 nociceptive 途径中功能障碍的基因表达是神经病痛的关键.
- 超级增强剂 (SE) 调节基因表达,但它们在疼痛中的作用尚不清楚.
研究的目的:
- 调查SEs在慢性收缩损伤 (CCI) 引起的神经病痛中的作用.
- 为了确定特定的SE及其参与疼痛信号的目标基因.
主要方法:
- 在背部角神经元中确定了一种脊柱特异性SE (SS-SE),调节Nmt1和Prrx2.
- 利用含原蛋白4 (BRD4) 抑制 (JQ1) 和CRISPR-Cas9进行SE删除.
- 在小鼠模型中评估基因表达 (NTMT1,PRRX2,p-ERK,GFAP) 和疼痛行为.
主要成果:
- CCI以BRD4依赖的方式增强了SS-SE活动和NTMT1/PRRX2表达.
- 抑制BRD4和删除SS-SE减弱了过敏性和正常化了基因表达.
- 打倒 Ntmt1 或 Prrx2,或在幼稚的小鼠中模仿它们,改变了疼痛行为.
结论:
- 在背部角神经元中,BRD4驱动的SS-SE活动通过Ntmt1/Prrx2.2驱动神经病痛.
- 准SS-SE或BRD4为神经病痛提供了一个新的治疗策略.
- 这项研究重新定义了对与疼痛相关的基因调节的理解.
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